Manifold lock for internal-combustion engines



H. P. MALON'EY.v

MANIFOLD LOCK FOB INTERNAL COMBUSTION ENGINES'. APPLICATION FILED FEB. 8, 1919.

1,426308. v PatentedAug-15, 1922.

l 2 SHEETS-SHEET l.. g/fac?. j.

H. P. MALONEY.

MANIFOLD LOCK FOR INTERNAL COMBUSTION ENGINES. APPLICATION FILED FEB. s, I9I9.

Patented Aug. 15, 1922.-

2 SHEETS-S H'E'ET 2.

fio

l HENRY r. MALONEY, or sfr. Louis, Missoula, nssreivon or ONE-Hens To nenni' i Hansis. or sfr. Louisivrissouni.

'MANIFOLD Loon". ros in'rnnien-o'oMBusTioN miennes.

Specification of Letters lba-/-Qnted Aug-'15, 1%22.

Application filed February e, lea. serial n5275729. f

To all whom t may concer/nf; v

Be it known that l, HENRY MALONEY, a citizen of the United States, and resident of the city of St. Louis and State of Missouri, have invented certain new and useful mprovementsl in Manifold Locks for nternal-Combustion Engines, of which thev following is aspecication containing a full, clear, and exact description,references being had to accompanying drawings, formin@v a part thereof.

bly invention relates to ycertain new and useful improvements in manifold locks and has for its primary object a locking device which is interposed between the carbureter Aand the intake manifold of an internal com- Fig. 1 is a View of an automobile showlng engine, instrument board, carbureter, intake manifold and my improved device in operative position.

Fig 2 is an enlarged longitudinal sectional view of the lock and its connecting parts taken on the line 2f2l of Fig. 3.

Fig. 3 is a planview of the device taken on the linel 3;-3 of'lfig. 2.

Fig. .tis a sectional view taken on the line'el-a of Fig'. 2. l

Fig. 5 is a sectional view taken on the line 5-5 of Fig. 2, and

Fig. 6 is a sectional View taken line 6-'-6 of Fig. 2.

Referring to the drawings, 7 indicates-the instrument board of any automobile, motor boat, or in fact, any 'internal combustion engine on which the different instruments `for operating and controlling the same are located.

8 indicates an internal combustion engine which is of any well knownV construction; 9 indicates the carbureter and 10 the intake manifold. .Between the carbureter 9 and the manifold 10 is interposed my improved lock valve 11, this lock being operated by a flexible shaft 12 which is located in a flexible tube 13, this tube' being preferably composed of some hardened material such on the as steel orthe like, so that the same cannot readily be cut and access'had tothe flexible shaft 12. f i

One fend of the flexible tube 13 is con,- nected to asleeve 'llby means'of a coupling 15. The sleeve-M extendsl through the instrument board 7 and is provided with an integral flange 16 through which'openings 17 are formed.'l The sleeve 14 vandl flange l16 arefurther provided withan additional cylindrical flange '18 in which a plurality of openings 19 are formed. These openings 19`are radially disposed as fullyfshow'nin Fig, 6. The purposeof these openings will be explained in detail later. l f y Within the sleeve 14 'is located a knob 20'which isprovi'ded with a shank 21 and tov this shank 21 is attachedy the end 22 of theffiexible shaft 12. 1n the knob 2O is located `the barrel of' a lock which is indicatedA by the numeral 23. partially rotatableso that after the key has been inserted, the pins can 'be withdrawn from engagementwith the openings 19 formed in the flange;` This barrel is provided with the v'usual key.v opening rso that an ordinary key lof the 4cylinder rlocky type maybeinserted. ,i 1 "Y l To theend ofthe key barrel 23 arepivotally attachedv levers 24,these'levers in turn being attached topins 25 which'are Aactuated by springs 2 6-, these pins and springs being located in the hollow portion `27 which is formed immediately back of the knob 20. The pins 25 extend'irito the openings 19 and are for the purpose of holding the knob and shaft12'against rotation when the key is removed. "The outside Lof vtheA sleeve 13 is covered by a second sleeve, so `thatthe openings 19 y'are closed' vfrom thel outside and there will be fno possibility of any instrument or instruments being inserted andv effeet avpic'king vof thelock and the release ofthe manifold lock. V

The oppositeend ofthe shaft 12 is at tached to a' shank 23v on the'endl of which is -locateda pinion 29,? this pinion meshing" with teeth 30 formed on the s diaphragm-or shutter 31 which is mounted in the `lock 11.

The` loek11 is constructedofse'veral sheets of hardened steel- 32, 33, 34,' `35 and 3G. Thesevmemberslor' plates are all shaped as indicatedlin Fig. 3 Iand have' bolt openings 37 by means of which the lock is secured be! tween the carbureter and the intake manirllhis barrel is lio fold. These plates are also provided with a series of bolt openings 38 through which the bolts 39 project, these bolts 39 securing the several plates together with the exception of plate 36 which plate acts as a cover or protector for the heads of the bolts 39.

The plate 34 is provided with a sleeve 40 which projects through an opening 41 formed in the plate 3G. This sleeve 40 is provided with a bore 42 in which a sleeve 43 is inserted, this sleeve acting as a bearing for the shank 28 formed on the pinion 29. r1`he free end 44 of the sleeve 40 is counterbored as indicated by the numeral 45 and receives they end 46 of the flexible tubing 13. The end 47 of the flexible shaft 12 is secured to the shank in any Well known manner so that the shank and pinion may be rotated.

The plates 33, 34 and 35 are provided with a partial bore 48 in which the pinion 29 is seated, the plate 32 prevent-ing any access ,eing had to the pinion 29 and also covering` the partial. bore 43 formed in the other plates. rilhe plate 32 is provided with a pair of grooves 49 extending on either side of the opening` 50 leaving a centr-al portion or rib 51, which acts as a guide for the diaphragm 31, this diaphragm being recessed along its central portion. as indicated by the numeral 52 so as to fit over the tongue or rib 51 formed on the member 32. The plates 33 and 34 are merely filling in plates to take care of the thickness of the diaphragm or shutter and are to prevent any lateral movement, that is, to allow a free up and down movement, so that the opening between the carbureter and the intake manifold can be closed but still hold this diaphragm or shutter from vibrating and allowing gas leakage.

The lock member 11 is so constructed or rather made of different sizes, so that the same can be Iapplied to any make of machine but the essential or main features, that is the diaphragm 31, the lock mechanism and the flexible shaft and flexible tubing, remain the same for all machines.

The operation of my device is as follows:

The diaphragm 31 being` in position as shown in Fig. 3, the intake manifold is fully opened and the pins 25 are seated in some pair of the openings 19. When it is desired to lock the machine, a key is inserted in the barrel 23 lof the loc-k and by a quarter turn of the key, the pins 25 are withdrawn from the openings 19 allowing the knob 20 to be rotated or turned. |This rotation or turning is transmitted through the flexible shaft to the pinion 29 which, meshing with the teeth 30 of the diaphragm 31, will raise the same lhen the diaphragm is raised to its uppermost position, a certain amount of resistance can be felt upon the knob 20. rllhe key 21 is then turned one quarter of a revolution backward and the knob Acontinued to be lfieeeos 'without destrovino` the lookin@` mechanism J c; r3

entirely, nor can the diaphragm 31 be opened other than by the manipulation of the lock and knob located on the instrument board or by a great amount of work in cutting' through the hardened flexible tubing` 13 and the flexible shaft 12. lllhen it is desired to again place the carbureterand intake manifold in operative condition, the operation is repeated with this exception, that the knob 20 is rotated or turned in the opposite direction, thus lowering the diaphragm 31 and establishing communication between the carbureter and intake manifold.

Having' fully described my invention what 1 claim is:

1. n. manifold lock forinternal combustion engines comprising a sleeve, an annular.

flange formed on one end thereof,a cylindrical flange formed on the annular flange and concentric with said sleeve, a shank rotatably mounted in said sleeve, ,a knob formed integral with said shank, a key operated barrel mounted in said knob,-a pair of levers pivotally attached to said key barrel, spring actuated pins'attached to the levers, ,oggienings foi-ined in the shank, said openings allai; ed to permit the passage of the pins therethrough, :i plurality of radially disposed openings formed in the cylindrical flange, said openings registering with the openings formed in the shank and adapted to per .iit the entrance of the pins to lock the knob against rotation.

2. A manifold lock for internal combustion engines comprising a sleeve, a circular flange formed on one end thereof, a cylindrical flange concentric with the sleeve formed at right angles to the circular flange, a shank adapted to he seated in said. sleeve, a knob formed integral with the shank, a key operated barrel rotatably mounted in said knob, a pair of spring actuated pins pivotally connected to said knob, said pins extending through the shank, a plurality of radially disposed openingsformed inthe cylindrical flange, said openings adapted to receive the spring actuated pins to lock the knob against rotation.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing` witnesses.

HENRY P. MALONEY.

Witnesses Enwin Onnnnck, llrlrZannTi-r CARTALL. 

